https://wiki.pathfindersonline.org/index.php?action=history&feed=atom&title=Translations%3AAY_Honors%2FMarine_Invertebrates%2FAnswer_Key%2F55%2FenTranslations:AY Honors/Marine Invertebrates/Answer Key/55/en - Revision history2026-04-03T19:25:41ZRevision history for this page on the wikiMediaWiki 1.35.5https://wiki.pathfindersonline.org/index.php?title=Translations:AY_Honors/Marine_Invertebrates/Answer_Key/55/en&diff=436656&oldid=prevFuzzyBot: Importing a new version from external source2021-04-16T20:54:05Z<p>Importing a new version from external source</p>
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Image:Strongylocentrotus purpuratus P1160330.jpg|<center>''Strongylocentrotus purpuratus'' </center><br />
Image:Paracentrotus lividus.001 - Aquarium Finisterrae.JPG|<center>''Paracentrotus lividus'' </center><br />
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Sea Urchins are small, spiny sea creatures of the class Echinoidea found in oceans all over the world. (The name urchin is an old name for the round spiny hedgehogs sea urchins resemble.) Their shell, which is also called the "test", is globular in shape and covered with spines. The size of an adult test is typically from 3 to 10 cm.Typical sea urchins have spines that are 1 to 3 cm in length, 1 to 2 mm thick, and not terribly sharp. Common colors include black and dull shades of green, olive, brown, purple, and red.</div>FuzzyBot